Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7894422 | System and method for transporting a call | Albert Daniel DuRee, Joseph Michael Christie | 2011-02-22 |
| 7376131 | System and method for transporting a call | Joseph Michael Christie, Albert Daniel DuRee | 2008-05-20 |
| 7203199 | System and method for transporting a call | Joseph Michael Christie, Albert Daniel DuRee | 2007-04-10 |
| 6421344 | ATM direct access line system | Joseph Michael Christie, Albert Daniel DuRee, Michael Joseph Gardner, William L. Wiley | 2002-07-16 |
| 6178170 | System and method for transporting a call | Albert Daniel DuRee, Joseph Michael Christie, Joseph Christie | 2001-01-23 |
| 6172977 | ATM direct access line system | Joseph Michael Christie, Albert Daniel DuRee, Michael Joseph Gardner, William L. Wiley | 2001-01-09 |
| 6018525 | ATM transport of voice band signals with channel associated signaling | — | 2000-01-25 |